Fig. 4From: Development of an efficient route for combined recycling of PET and cotton from mixed fabricsMicrographs of selective hydrolysis of PET in 10% NaOH, 0.1 mol BTBAC/kg solution at 80 °C, a at start, 23 °C, b after 37 min, 80 °C, and c after 1 h, 80 °C. The black scale bar indicates 0.1 mmBack to article page